如何将私钥内容放入 dotenv .env 文件中用于 lumen 应用程序？

Question

I want to work with SFTP server in my lumen app and therefore i need to store the private key to access the SFTP server in the .env file (dotenv)

I tried this approach:

SFTP_PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----\\nHkVN9…\\n-----END DSA PRIVATE KEY-----\\n"

When I dd(env('SFTP_PRIVATE_KEY')); I am getting an empty string back

Any idea how to deal with this?

Answer 1

Okay, I've managed to come up with a work around method like this:

1. I've replaced every new line with double pipes: ||
2. When I load the contents of the environment variables via lumen's env() function, I replaced it back to new lines

for eg my .env

SFTP_PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----||HkVN9…||-----END DSA PRIVATE KEY-----||"

and here's how you use it:

$privateKey = env('SFTP_PRIVATE_KEY');
$privateKey = str_replace('||', PHP_EOL, $privateKey);

// Debug
echo '<pre>';
echo($privateKey);
exit;

I tested this and this now work, let me know if there is a better way.

Answer 2

PHP dotenv version 3 adds support for multi-line values. So now you can just do this:

SFTP_PRIVATE_KEY="-----BEGIN RSA PRIVATE KEY-----
HkVN9…
-----END DSA PRIVATE KEY-----"